sourcecode/server/tools/src/main/java/com/tencent/protocol/pay_protocol/AppReqData.java

package com.tencent.protocol.pay_protocol;

/**
 * User: gaojie
 * Date: 2017/05/10
 * Time: 16:42
 */

import com.tencent.common.Configure;
import com.tencent.common.RandomStringGenerator;
import com.tencent.common.Signature;

import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;

/**
 * app发送
 */
public class AppReqData {

    //每个字段具体的意思请查看API文档
    private String appid = "";
    private String partnerid = "";
    private String prepayid = "";
    private String _package = "Sign=WXPay";
    private String noncestr = "";
    private String timestamp = "";
    private String sign = "";

    public AppReqData(String prepayid){
        setPrepayid(prepayid);

        //微信分配的公众号ID（开通公众号之后可以获取到）
        setAppid(Configure.getAppid());

        //微信支付分配的商户号ID（开通公众号的微信支付功能之后可以获取到）
        setPartnerid(Configure.getMchid());

        int timestamp = Math.toIntExact(System.currentTimeMillis() / 1000);
        setTimestamp(String.valueOf(timestamp));

        //随机字符串，不长于32 位
        setNoncestr(RandomStringGenerator.getRandomStringByLength(32));

        //根据API给的签名规则进行签名
        String sign = Signature.getSign(toMap());
        setSign(sign);//把签名数据设置到Sign这个属性中

    }

    public String getAppid() {
        return appid;
    }

    public void setAppid(String appid) {
        this.appid = appid;
    }

    public String getNoncestr() {
        return noncestr;
    }

    public void setNoncestr(String noncestr) {
        this.noncestr = noncestr;
    }

    public String getSign() {
        return sign;
    }

    public void setSign(String sign) {
        this.sign = sign;
    }

    public Map<String,Object> toMap(){
        Map<String,Object> map = new HashMap<String, Object>();
        Field[] fields = this.getClass().getDeclaredFields();
        for (Field field : fields) {
            Object obj;
            try {
                obj = field.get(this);
                if(obj!=null){
                    String name = field.getName();
                    if(name == "_package") name = "package";
                    map.put(name, obj);
                }
            } catch (IllegalArgumentException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }
        }
        return map;
    }

    public String getPartnerid() {
        return partnerid;
    }

    public void setPartnerid(String partnerid) {
        this.partnerid = partnerid;
    }

    public String getPrepayid() {
        return prepayid;
    }

    public void setPrepayid(String prepayid) {
        this.prepayid = prepayid;
    }

    public String get_package() {
        return _package;
    }

    public void set_package(String _package) {
        this._package = _package;
    }

    public String getTimestamp() {
        return timestamp;
    }

    public void setTimestamp(String timestamp) {
        this.timestamp = timestamp;
    }
}